Computer fundamentals by anita goel software#
Computer fundamentals by anita goel Pc#

No system bus for accessing the cache.ДЎ6 CPU has built in Level1 (L1) cache and Level2(L2) cache. During processing ,CPU first checks cache for data,if not then CPU looks in the RAM for data. Very high speed memory placed between RAM and CPU Increases the speed of processing. Instructs the ALU to perform the operation CU tells when to fetch the data and instruction,what to do and where to store the programДЎ4 Memory Unit Consists of Cache memory Primary memory Secondary memoryДЎ5 Cache Memory It is a storage buffer that stores the data that is used more often, temporarily and makes them available to CPU at fast rate. Uses IR to decide which circuit to be activated. Directs the computer to carry out stored program instruction by communicating with ALU and the registers. May be in 8,16,32,64 bitsДЎ3 Control Unit Organizing the processing of data and instructionsДЄct as a supervisor, controls and coordinates the activities of other units of computer.

Computer fundamentals by anita goel Pc#

Uses registers to to hold data that is being processes.Д© Registers High speed storage area within CPU Least storage capacityДirectly accessed by CPU Refers as CPUвЂ™s working memory Used to store data,instructions,addresses and intermediate results.ДЄccumulator ACC : Stores results of arithmetic and logic operations Instruction register IR : contains current instruction most recently fetched Program Counter PC : contains the address of the next instruction is to be fetched Memory Address Register MAR : address of next location in the memory to be accessed Memory Buffer Register MBR: temporary stores data from memory or data to be sent to memory Data Register DR : stores the operands and any other data.ДЎ2 Word size : - size of register, indicates the amount of data with which computer can work at any given time. Performs arithmetic operations on data Ex: addition,subtraction ,multiplication etc Performs logic operations on data Ex: comparison of numbers,letters and special characters. stored-program computer Bottleneck : - anВ instruction fetch and a data operation cannot occur at the same time because they share a commonВ bus.Д«rain of the computer Consists of ALU, Control Unit (CU), registers and instructions Executes stored program program instruction Data and instructions are stored in memory before execution CPU gets data and instruction from memory, interprets the program instructions and perform the required arithmetic and logic operationsД¬entral Processing Unit Control Unit Arithmetic Logic Unit RegistersДЁ Arithmetic Logic Unit Consists 2 units Arithmetic unit Logic unit temperature, pressure, speed weight, voltage, depth etc.ДЄВ computer architecture in 1945 by the mathematician and physicistВ John von Neumann electronicВ digital computerВ with parts consisting of processing unitВ containing anВ arithmetic logic unitВ andВ processor registers aВ control unit aВ memoryВ to store bothВ dataВ andВ instructions, externalВ mass storage input and output units. Analog data is of continuous nature and which is not discrete or separate. Informations are represented using 0 and 1 Analog Computers : represents data as variables used to process analog data. Uses distinct value to represent data internally.

Computer fundamentals by anita goel software#

Introduction to programming languages: types of programming languages - high level language, assembly language and machine language System software - Operating systems вЂ“ objectives of operating systems, compiler, assembler and interpreter.ДЈ Computer 2 Types Digital Computers : Analog Computers : Storage вЂ“ primary storage and secondary storage. Details of functional units of a computer.

Module 1 Reference Text : Computer Fundamentals by Anita GoelДў Syllabus Introduction to digital computer вЂ“ Von Newman concept вЂ“ A simple model of computer with acquisition of data, storage of data, processing of data, output of processed data. Presentation on theme: 'Reference Text : Computer Fundamentals by Anita Goel'- Presentation transcript:ДЎ Reference Text : Computer Fundamentals by Anita Goel